Machine for taping coils.



PATENTED OCT. 10, 1905.

G. P. WHITTLESEY. MACHINE FOR TAPING GOILS.

APPLICATION FILED APRHIB, 1902.

4 SHEETS-SHEET 1.

Inventor: George P (0h Lttbese zg 5 Mafia (DLtnesses.

H btgu No. 801,287. PATENTED OCT. 10, 1905.

G. P. WHITTLESEY. I MACHINE FOR TAPING GOILS. .f.

APPLICATION FILED APR.16. 1902.

' 4 SHEETS-SHEET 2.

(DLtn6sse IIHVQFWCOI".

George F? (UhLttLeseg b M1. W

No. 801,287. PATENTED OCT. 10, 1905. G. P. WHITTLESEYL MACHINE FORTAPING GOILS.

APPLICATION mum APRJG, 1902.

4 SHEETS-SHEET 3.

LULtne5se s. Inventor.

a Gebrge whLttLese g.

Fftt g.

No. 801,287. .PATENTED OCT. 10, 1905.

G. P. WHITTLESEY. MACHINE FOR TAPING GOILS.

urmoA'non FILED APR. 16, 1902.

4 SHEETS-SHEET 4.

(ULtnesses.

lhyentorr George? @httctesey UNITED STATES PATENT OFFICE.

GEORGE P. WHITTLESEY, OF WASHINGTON, DISTRICT OF COLUMBIA, ASSIGNOR TOGENERAL ELECTRIC COMPANY, A CORPORATION OF NEIV YORK.

MACHINE FOR TAPING COILS- Specification of Letters Patent.

Patented Oct. 10, 1905.

To all whmn it may concern;

Be it known that I, GEORGE P.WH1TTLEsEY, a citizen of the United States,residing at IVashington, in the District of Columbia, have inventedcertain new and useful Improvements in Machines for Taping Coils, ofwhich the following is a specification.

This invention relates to mechanism for winding insulating-tape on thecoils of electrical apparatus, such as transformers and gen- Its ob ectis to accomplish by autoerators. matic machinery what has heretoforebeen done generally by hand. In making coils of the kind mentioned it iscustomary to wind an insulated conductor of either round or rectangularcross-section into the desired shape of coil, such as a cylinder or arectangle with rounded corners. wound with tape, each turn partlyoverlapping the previous one. After winding, a coating of shellac orother insulation is applied and then another layer of tape is wound on.This operation is repeated as often as may be tholught necessary tothoroughly insulate the CO1 My invention consists of a table or framefor supporting the coil, a tape-winder or bobbin-carrier arranged at acertain point in said frame, and means for carrying the coil past thewinder. is made for turning them at the corners. For cylindrical coilsthe winder is made radially adjustable to adapt the machine to differentsizes of coils. The winder and the coil-carrier are independentlycontrollable by clutches or otherwise, so that either can be stopped andstarted at will without interfering with the other.

In the accompanying drawings, Figure 1 is a front elevation of a machinefor taping rectangular coils. Fig. 2- is a top plan view of the same.Fig. 3 is an end elevation of the same, showing a coil in section. Fig.A is a perspective view of a machine for winding cylindrical coils. Fig.5 is a sectional elevation on the line 5 5, Fig. 2. Fig. 6 is a sectionon the line 6 6, Fig. 5. Fig. 7 is a plan view of thecontrolling-clutches and their operating devices. Fig. 8 is a diagramshowing the operation of the machine.

Referring first to Figs. 1, 2, and 3, it will be seen that on suitablestandards or legs 1 is supported a frame 2, having a straight front Thiscoil is then carefully For rectangular coils provision ed ge'andasemicircular rear edge. This frame is preferably inclined downwardlyfrom back to front at an angle of about twenty degrees, more or less, tothe horizontal, for a purpose hereinafter explained. At the center ofthe front is supported a rotatable annular bobbincarrier consisting of aring 3, standing in a vertical plane and having a hinged or removablesegment 4. The bobbin-carrier is held upright by three rollers 5 6 7,the first journaled in an arm 8, fastened to the front of the frame andoverhanging the bobbin-carrier, while the others are journaled inbearings secured to the under side of the frame 2. The edge of thebobbin-carrier is toothed, and one of the rollers, as 7, is alsotoothed, this constituting a pinion by means of which thebobbin-carriercan be revolved in its own plans. On one side of the bobbin-carrier is areel or bobbin 9, on which the supply of tape is wound.

Along the front part of the machine extend two rectilinearly-movablecoil-carriers, each terminating near the bobbin-carrier. The coilcarriers consist, preferably, of endless belts 10, running over a seriesof idle supporting-rollers 11 and driven by one of the end rollers, overwhich the belt passes, both belts running in the same direction say tothe right in Figs. 1 and 2. Suitable mechanism is provided for drivingeach belt, preferably comprising a worm-gear 12 on the shaft of one ofthe driving-rollers meshing with a worm 13 on a shaft 14, on which is apulley 15, connected by a belt 16 with a driving-pulley 17 on the mainshaft 18, which runs parallel with the front of the machine in suitablebearings secured to the standards 1. Power is conveyed to the main shaftby a pulley 19 and belt 20 from any convenient source, such as anelectric motor 21. A clutch 22, operated by a rock-shaft 23 and lever2A, enables theoperator to start and stop the coil-carrying belts atwill.

In the semicircular rear portion of the frame are journaled a pluralityof rollers 25, arranged radially to that point of the machine where thebobbin-carrier is located. These rollers are for the purpose of turninga rectangular coil when a corner is reached. The rollers are shown ascylindrical; but they may be coned, if desired, as indicated by thedotted lines in Fig. 2. Each roller is geared by bevel-gears 26 at itsouter end to a short upright shaft carrying a sprocket-wheel 27 at itslower end. A chain belt 28 runs over all the sprockets, so that all therollers move simultaneously. On the shaft of one of the sprockets is abevelgear 29, meshing with a pinion 30 on an upright shaft 31, which hasa large bevel gearwheel 32, meshing with a pinion 33, loose on the mainshaft 18. A clutch 34 connects and disconnects the pinion and shaft andis operated by the lever 24:, being connected with the rock-shaft 23 bya rock-arm 35 and rod 86. The two clutches 22 and 3A are so arrangedthat each one will be thrown out when the other is thrown in, so thatthe carrier-belts 10 will not be operated when the radial rollers arerotating, and vice versa.

The main shaft may be connected with the bobbin-carrier by means of abelt 37, running over a pulley 38 on the same shaft as the pinion 7. Aclutch 39 and lever 40 control this belt and the operation of thebobbin-carrier independently of the movements of the coilcarriers.

Adjacent to each coil-carrier belt 10 is a set of guide-rolls 4L1,journaled in arms A2, projecting from plates 42, which are adjustable onthe frame 2 transverse to the line of movement of the belts 10, as bymeans of slots 43 and clamping-bolts 4 1.

lVhen a coil 45 is placed on the machine, its weight causes it to slidedown against the guide-rolls, which are so adjusted that the coilspasses centrally through the bobbin-carrier, the removable segment 4;permitting the coil to be inserted edgewise into said bobbincarrier. Onstarting the machine the bobbincarrier revolves, winding the tapefrom-the bobbin onto the coil as the latter is carried slowly along bythe carrier-belts 10. The machine must be so timed that each turn oftape will properly overlap the edge of the preceding turn. hen therounded corner of the rectangular coil is reached, the carrierbelts arestopped and the radial rollers are set in operation and act to swing thecoil in its own plane, turning on the corner as a center, the tapingstill going on as the coil swings, Fig. 8. \Vhen the corner has beenturned and the next straight side of the coil comes against theguide-rolls, the radial rollers are stopped and the carrier-beltsstarted again.

It will be seen that the diameter of the bobbin-carrier can readily bemade sufficient to permit it to work on the largest coils which themachine is capable of handling.

in the modified machine shown in Fig. 4 the coil-carrier is composedentirely of radial rollers 46, whose inner ends are provided withbevel-pinions 47, meshing with a common bevel-gear 18 on an uprightshaft 49, driven by a worm-gear and worm 51, which receives motion bybelt 52 from the main shaft The bobbin 5a is carried on two parallelendless upright chain belts 55, running over sprocket-wheels 56,journaled in a carriage 57, which slides in ways 58 radial to thecentral driving-shaft 49. Small star-wheels 59 on a transverse shaftengage with the chains and cause them to run at the same speed. One ofthe lower sprocket-wheels has its shaft extended to carry a belt-rmlley60, over which runs a belt 61, driven by the main shaft. Abelt-tightener 62 keeps the belt taut and permits the carriage to bemoved back and forth in its ways without disengaging the belt. On theframe 63 are radial guides 64%, in which are adjustably mounted uprightguide-rolls 65. In operation the cylindrical coil is placed on therollers with its axis upright and concentric with the central shaft, andthe guiderolls are adjusted to keep it in this position. A link in eachchain belt is then opened and both chains are passed through the coiland the ends reconnected, the carriage having been properly moved alongthe ways to bring the coil midway between the two sides of each chain.The machine is then started and the radial rolls rotate the coil at theproper speed to insure the lapping of the tape as it is laid. on by thebobbin in its travel up and down outside and inside the coil.

In both modifications it may not be possible always to tape the entirecoil. since at the end or place where the leads come out from the coilthe tape must be carried under them, because as a rule they must not bebent aside for fear of injuring the insulation. This part of the coil,therefore, must frequently be wound by hand; but all other parts can bemore quickly and evenly wound by the machine.

it is evident that endless chain belts might be substituted for theannular bobbin-carrier shown in Figs. 1, 2, and 3 and that either thisor the annular one might be mounted on an adjustable carriage, as inFig. t.

lVhat I claim as new, and desire to secure by Letters Patent of theUnited States, is

1. A coil-taping machine, comprisinga bobbin-carrier, an inclinedsupport for the coil, whereby the latter tends to move sidewise underthe action of gravity, and means for engaging said coil at the lowersideand moving it past said bobbin-carrier.

2. A coil-taping machine, comprising an endless bobbin-carrier, meansfor engaging one side of said coil and moving it past saidbobbin-carrier, and means for independently controlling the movements ofthe bobbin-carrier and coil.

3. A coil-taping machine, comprising an endless bobbin-carrier, meansfor engaging one side of said coil and moving it through said carrier,and guide-rolls for determining the position of the coil with referenceto said carrier.

at. A coil-taping machine, comprising an endless bobbin-carrier, andcoil-carrying rollers radial to said bobbin-carrier.

5. A coil-taping machine, comprising an endless bobbin-carrier,coil-carrying rollers radial to said bobbin-carrier, and means fordriving said rollers simultaneously.

6. A coil-taping machine, comprising an annular bobbin-carrier, meansfor revolving it in a given plane, and coil-carriers movingrectilinearly and transversely to said plane.

7. A coil -taping machine, comprising an endless bobbin-carrier, meansfor feeding a rectangular coil through said carrier in a rectilineardirection, and means for turning the coil at the corners.

8. A coil-taping machine, comprising an annular bobbin-carrier, meansfor revolving it in a given uprightplane, rectilinearly-movingcoil-carriers operating transverse to said plane, and radialcoil-carriers operating in lines concentric with the point of taping.

9. A coil -taping machine, comprising an endless bobbin-carrier, meansfor feeding a rectangular coil through said carrierin a rectilineardirection, means for turning the coil at the corners, and means foroperating said tWo kinds of coil-carriers at different times.

10. A coil-taping machine, comprising an endless bobbin-carrier, aninclined table for supporting the coil, and guide-rolls against whichthe coil rests.

11. A coil-taping machine, comprising an endless bobbin-carrier,coil-carrying devices adjacent to said bobbin carrier, and guiderollsadjustable transversely to the line of travel of the coil. a

12. A coil-taping machine, comprising an endless bobbin-carrier, aninclined table, coilcarrying belts adjacent to said bobbin-carrier,radial coil-carrying rolls, sprocket-Wheels geared to said rolls, and achain connecting said sprocket-Wheels.

In witness whereof I have hereunto set my hand this 15th day of April,1902.

GEO. P. WHITTLESEY.

Witnesses:

BENJAMIN B. HULL, HELEN ORFORD.

